Box with two resilient U=section components - has edges of one fitting into grooves near edges of other component

摘要

The box is made in plastic or other resilient material, and consists of two U-section components(X, Y) which fit together. The first component(X) has a groove running parallel and adjacent to its edges in the inner wall surface. The width of the groove equals the wall thickness of component(Y), and its depth half the wall thickness of (X). To assemble the component(X) is bent outwards and component(Y) inserted with its open end facing that of(X) and allowed to enter the groove.